Back in 2002 when debate over Iraq was raging, the lefties said don't attack Iraq. Iran is much more of a threat. So now if we aim to eliminate that threat, and take out Iran, will those same lefties approve? Somehow I think not.
Now, they are saying we can contain Iran. OR, just a few months ago, they suggested we attack NK. The only wars they seem to be for the US conducting are the ones she is planning on doing soon.